40223

Appears in sequences

• Numbers k such that (15*10^(k-1) - 51)/9 is a plateau prime.at n=10A082700
• Numbers n such that there are integers a < b with a^2+(a+1)^2+...+(n-1)^2 = (n+1)^2+(n+2)^2+...+b^2.at n=10A094552
• Expansion of x * (x+1) * (x^3-x^2-1) / ((x^2+1) * (x^3+x^2-1)).at n=40A122519
• Number of (6+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=32A250660
• a(0) = a(1) = a(2) = a(3) = 1; thereafter a(n) = a(n-1) + a(n-2) + a(n-4).at n=21A307677
• Radicands of pure cubic number fields of type BETA and subtype M0.at n=41A363699